Inventor
XIANG YING
US7 patents
⚠️ This page may combine multiple inventors who share the name “XIANG YING”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SMITH INTERNATIONAL
5 patentsUS6612384B1Sep 2, 2003
Cutting structure for roller cone drill bits
SMITH INTERNATIONAL59 citations95
US6651758B2Nov 25, 2003
Rolling cone bit with elements fanned along the gage curve
SMITH INTERNATIONAL29 citations90
US6561291B2May 13, 2003
Roller cone drill bit structure having improved journal angle and journal offset
SMITH INTERNATIONAL20 citations90
US6601660B1Aug 5, 2003
Cutting structure for roller cone drill bits
SMITH INTERNATIONAL8 citations73
US6719073B2Apr 13, 2004
Single-cone rock bit having cutting structure adapted to improve hole cleaning, and to reduce tracking and bit balling
SMITH INTERNATIONAL7 citations71